Season (Adult / Immature):
National Status: Local
Local Status: Scarce and restricted resident.
Local Record: Grade 3 See here for explanation
Flight time: One generation, Aug-Sep.
Foodplant: Common Reed.
|Year first recorded||1887||1983||1887|
|Year last recorded||2011||2009||2011|
|Number of records||270||38||616|
|Number of individuals||765||74||1678|
For the region, we have a total of 616 records from 152 sites. Earliest record on file is in 1887.
For further information refer UK Moths.
Davey, P., 2009: A local species restricted to southern England, east Anglia and the south coast of Wales, the larva feeding within the inner stems of common reed (Phragmites australis). In Dorset, the moth is common within all the larger reedbeds. It is recorded regularly from the Fleet, Radipole, Lodmoor, Poole Harbour and Christchurch Harbour. It also occurs in fen habitat on the River Frome and the River Piddle to the west of Wareham, although there are no records of the moth from the extensively worked reedbed at Morden Bog. The following examples indicate colonisation of small pockets of common reed in coastal localities too: Punfield Cove, larva in a common reed stem on 8 June 1887, one larva plus one pupa on 30 June 1896, twelve larvae on 6 June 1898 (Reverend E Bankes), two pupae from common reed stems on 23 July 1895 (Reverend E Bankes, E Nevison).
There are many additional records of moths that may have originated from small pockets of common reed growing in wetland near trap sites but more likely these are the result of dispersal, indeed many singletons appeared far from any reedbed across the county during the intense heatwave of August 2003.